shell:$ nslookup -timeout=2 -retry=1 'www.perlego.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
Name:	www.perlego.com
Address: 104.18.27.209
Name:	www.perlego.com
Address: 104.18.26.209
Name:	www.perlego.com
Address: 2606:4700::6812:1bd1
Name:	www.perlego.com
Address: 2606:4700::6812:1ad1